Not pointless to wait. I think the point of waiting is making sure actual defects that should be covered will be covered, not denied based on a mod that *could* have effected something. At this point, any problems would be the OPs, either way.

Say you have a bearing problem from the factory, then your engine fails. BMW covers it. Now say you have the EXACT same car, and you tune it or put a blower on it, whatever, and your engine fails. Based on this scenario, it would have broken either way, but BMW has grounds to deny your warranty claim if your mod *may* have led to the failure. They don't have to prove it caused the failure in order to make your life miserable.

Not pointless to wait. I think the point of waiting is making sure actual defects that should be covered will be covered, not denied based on a mod that *could* have effected something. At this point, any problems would be the OPs, either way.

Say you have a bearing problem from the factory, then your engine fails. BMW covers it. Now say you have the EXACT same car, and you tune it or put a blower on it, whatever, and your engine fails. Based on this scenario, it would have broken either way, but BMW has grounds to deny your warranty claim if your mod *may* have led to the failure. They don't have to prove it caused the failure in order to make your life miserable.

I very much got the sense chatting with BMW (at length) that any engine-related mod, including a tune, will pretty much void your warranty in the event that something goes seriously wrong (whether actually attributable to the mod or not).

In any event, I waited until the warranty expired as well before modding it.

My dealer wasn't the most mod-friendly one. They had problem with my aftermarket air filter but didn't say anything about the exhaust. They told me they would not service anything that is not BMW oem parts so unless I put the stock parts back on, they won't clean my air filter lol